Home / 199,918.80-275,895.32-109,280.81

Finding the Fourth Proportional to 199,918.80, 275,895.32 and 109,280.81

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Solution

The fourth proportional to 199,918.80, 275,895.32 and 109,280.81 is: 150,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,918.80 : 275,895.32 = 109,280.81 : x
  2. Step 2: Convert to fraction form
    199,918.80/275,895.32 = 109,280.81/x
  3. Step 3: Cross multiply
    199,918.80x = 275,895.32 × 109,280.81
  4. Step 4: Simplify right side
    199,918.80x = 30,150,064,188.14
  5. Step 5: Solve for x
    x = 30,150,064,188.14/199,918.80
  6. Step 6: Final answer
    x = 150,811.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.